133502449 has 2 divisors, whose sum is σ = 133502450. Its totient is φ = 133502448.

The previous prime is 133502431. The next prime is 133502477. The reversal of 133502449 is 944205331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133056225 + 446224 = 11535^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 133502449 - 2⁷ = 133502321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133502449.

It is not a weakly prime, because it can be changed into another prime (133502849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66751224 + 66751225.

It is an arithmetic number, because the mean of its divisors is an integer number (66751225).

Almost surely, 2^133502449 is an apocalyptic number.

It is an amenable number.

133502449 is a deficient number, since it is larger than the sum of its proper divisors (1).

133502449 is an equidigital number, since it uses as much as digits as its factorization.

133502449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 133502449 is about 11554.3259864001. The cubic root of 133502449 is about 511.0888552253.

The spelling of 133502449 in words is "one hundred thirty-three million, five hundred two thousand, four hundred forty-nine".